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GB/T 36214.4-2018: Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 4: High-temperature method
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| GB/T 36214.4-2018 | English | 304 |
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Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 4: High-temperature method
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GB/T 36214.4-2018
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Basic data | Standard ID | GB/T 36214.4-2018 (GB/T36214.4-2018) | | Description (Translated English) | Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 4: High-temperature method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080.20 | | Word Count Estimation | 16,126 | | Date of Issue | 2018-05-14 | | Date of Implementation | 2018-12-01 | | Regulation (derived from) | National Standards Announcement No. 6 of 2018 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 36214.4-2018: Plastics -- Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography -- Part 4: High-temperature method
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(Plastics - Determination of the average molecular weight and molecular weight distribution of polymers by size exclusion chromatography - Part 4. High temperature method)
ICS 83.080.20
G31
National Standards of People's Republic of China
Determination of polymer by plastic volume exclusion chromatography
Average molecular weight and molecular weight distribution
Part 4. High temperature method
Part 4. High-temperaturemethod
(ISO 16014-4.2012, IDT)
Published on.2018-05-14
2018-12-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
GB/T 36214 "Plastics volume exclusion chromatography for the determination of the average molecular weight and molecular weight distribution of polymers" is divided into five parts.
--- Part 1. General;
--- Part 2. Universal Correction Method;
--- Part 3. Low temperature method;
--- Part 4. High temperature method;
--- Part 5. Light scattering method.
This part is the fourth part of GB/T 36214.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This section uses the translation method equivalent to ISO 16014-4.2012 "plastic volume exclusion chromatography to determine the average molecular weight of the polymer.
And molecular weight distribution Part 4. High temperature method.
This section has made the following editorial changes.
--- Appendix C supplements the test conditions and test results of the precision test.
This part was proposed by the China Petroleum and Chemical Industry Federation.
This part is under the jurisdiction of the National Plastics Standardization Technical Committee (SAC/TC15).
This section drafted by. Guangzhou Quality Supervision and Inspection Institute, Tongdao Technology Chengdu Co., Ltd., China Petroleum and Chemical Corporation
Beijing Yanshan Branch Resin Application Research Institute, Beijing Puli Taike Instrument Co., Ltd., China National Petroleum Corporation Petrochemical Co., Ltd.
Research Institute, Zhonglan Chengdu Testing Technology Co., Ltd.
The main drafters of this section. Pan Yonghong, Wang Wanju, Li Jun, Chen Hongyuan, Zhang Lin, Tian Lijuan, Wang Li, Yi Jianjun, Sun Lijun, Zu Fenghua,
Luo Xiaoxia, Xu Jing, He Guoshan, Chen Minjian.
Determination of polymer by plastic volume exclusion chromatography
Average molecular weight and molecular weight distribution
Part 4. High temperature method
1 Scope
This part of GB/T 36214 specifies the use of organic eluents at 60 ° C ~ 180 ° C, by volume exclusion chromatography (SEC)
A method of determining the average molecular weight and molecular weight distribution of a polymer. Calculate the average molecular weight and fraction based on the calibration curve constructed from the polymer standard
The sub-quantity distribution, therefore the test method is a relative method (see Appendix A and Appendix A of GB/T 36214.1-2018).
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 36214.1-2018 Determination of the average molecular weight and molecular weight distribution of polymers by volume exclusion chromatography
Points. General (ISO 16014-1.2012, IDT)
ISO 472 plastic terminology and its definition (Plastics-Vocabulary)
ISO 16014-2 Determination of average molecular weight and molecular weight distribution of polymers by volume exclusion chromatography - Part 2. General
Plastics-Determination ofaveragemolecularmassandmolecularmassdistributionofpolymers
usingsize-exclusionchromatography-Part 2.Universalcalibrationmethod)
3 Terms and definitions
The terms and definitions defined by ISO 472 and GB/T 36214.1-2018 apply to this document.
4 Principle
See Chapter 4 of GB/T 36214.1-2018.
5 reagents
5.1 eluent
The general requirements for eluents are given in 5.1 of GB/T 36214.1-2018.
See Appendix B for examples of eluents used in SEC equipment above 60 °C.
5.2 Evaluation of column reagents
See 5.2 of GB/T 36214.1-2018.
Several low molecular weight compounds can be used, such as diphenylmethane or 1,2,4-trichloro when using 1,2-dichlorobenzene as eluent
Ethylbenzene can be used as the eluent for benzene.
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